Change is constant in medical coding due to medical and technological breakthroughs, evolving health insurance legislation and changes in codes on account of other factors.
Cardiology is a specialty that sees rapid development in technology and cardiovascular procedures. There should be no knowledge deficit regarding ICD-/CPT codes for claims to be reimbursed, as it is accurate coding that gets physicians paid.
Ambulance services are handled by paramedics and other medical professionals. They are well trained and equipped to carry out the first aid and transportation.